Spectrophotometric Determination of Titanium(IV) by Using 3,4-Dihydroxybenzaldehydeisonicotinoyl- hydrazone(3,4-DHBINH) as a Chromogenic Agent

Abstract

3,4-Dihydroxybenzaldehydeisonicotinoylhydrazone(3,4-DHBINH) was prepared, characterized with spectral analyses and used for developing a new method for the simple, sensitive and rapid spectrophotometric determination of titanium(IV) which gives maximum absorbance at wave length 370 nm. The metal ion gives a yellow colored complex with 3,4-DHBINH in acetate buffer of pH 3.5 with 1:2 (metal: ligand) composition. The method obeys Beer's law in the range 0.5-4.25 ppm of titanium(IV). The molar absorptivity and Sandell's sensitivity were found to be 1.489×10 4 L mol -1 cm -1 and 0.003217 µg cm -2 , respectively at 370 nm. The correlation co-efficient of the Ti(IV)-3,4-DHBINH complex was 1.00125 which indicated an excellent linearity between the two variables. The repeatability of the method was checked by finding the relative standard deviation (RSD) as 0.347% (n=5) and its detection limit 0.0053 µg mL -1 of titanium(IV). The interfering effect of various cations and anions were also studied.

ICP-OES Determination of Titanium (IV) in Marine and Wastewater Samples after Preconcentration onto Unloaded and Reagent Immobilized Polyurethane Foams Packed Columns

“…A reversed-phase liquid chromatographic method for the determination of titanium with 5,5'-methylenedisalicylohydroxamic acid (MEDSHA) has been described by Bagur et al [5]. Separation and determination of titanium (IV) at trace levels in different matrices including industrial wastewater have been reported employing solid phase extraction (SPE) [6][7][8][9][10][11]. SPE has several advantages e.g.…”

“…SPE has several advantages e.g. simple operation, low cost, no time consuming, good selectivity, higher preconcentration factor, rapid phase separation and the ability to be combined with different modern analytical techniques [6][7][8][9][10][11].…”